The plan is online at
Japanese Monograph No. 97
1. The Operation of the Air Attack Forces
The force will be 700 nautical miles due north of point Z (set at the western extremity of the Island of Lanai) at 0600 hours X-1 Day and advance on a course of 180 degrees from 0700 hours X-1 Day at an increased speed of 24 knots.
Air attacks will be carried out by launching the first attack units 230 nautical miles due north of Z point at 0130 hours X Day, and the second attack unit at 200 nautical miles due north of Z point at 0245 hours.
After the launching of the second attack units is completed, the task force will withdraw northward at a speed of about 24 knots. The first attack units are scheduled to return between 0530 and 0600 hours and the second attack units are scheduled to return between 0645 and 0715 hours.
Immediately after the return of the first and second attack units, preparations for the next attack will be completed. At this time, carrier attack planes capable of carrying torpedoes will be armed with such as long as the supply lasts.
. General outline.
If the destruction of enemy land-based air strength progresses favorably, repeated attacks will be made immediately and thus decisive results will be achieved.
In the event that a powerful enemy surface fleet appears, it will be attacked.
Now I've always said that there was no second attack planned, but reviewing this it appears I'm wrong. However, all torpedo planes' and dive bombers' targets were to be combatants. The infrastructure wasn't targeted per se.