If your aim is PURE explosive power I would suggest near full recoevery between every run.
Overall volume CAN be high, however once you begin to lose your technique and slow down your track session should come to an end. Keep in mind that your goal is quality and to run as fast as possible. Consequently whenever fatigue sets in you should stop.
Your workout would probably resemble a similar template used by sprinter's for blockwork. This type of workout is used to increase speed over very short distances, and yes recruits a great deal of power and Type IIB muscle fibres. An example would be as follows...
Something to keep in mind: I'm sure as an oly lifter that you are well aware of this, however just in case, Be warmed up properly before engaging in this type of explosive exercise as the potential for muscle pulls/tears are increased without proper warmup
3x20m @ 90%
1X30m @ 90%
2x40m @ 90%
2x50m @ 95%
I do not think however that for the requirements of your sport that you would necessarily recquire anything of very high volume. Of course your first couple workouts will be somewhat experimental as you will find out what would be considered high volume. Depending on your fitness level, that would determine your ability to sustain proper sprint form and resist fatigue over the duration of the workout. From there you can determine how much overall volume you should implement into your training. In gneral I'd say nothing over 300m in total volume.
For your rest periods I would not recommend sitting completely as keeping warm is important, maybe throwing the jogging pants back on and walking around, but nothing too demanding that would result in tiring you out. I do not think a jog would be necessary, but a walk would suffice. Your main goal here is to be rested, loose and warm!
I do not know if you are already doing this, but you may also benefit from plyometrics as well, especially two footed jumps for height onto a box into the snatch position.
Hope this helps