Need a wiring diargam to look at

You won't find a diagram.
You will have series of yellow and white and sometimes gray wires on the outside of the motor housing and often a letter code etched on the housing , indicating the original wiring from years ago, red, blue, yellow, however the newer wiring eliminated those colors.
These wires are almost fool proof as they will align with the longest wire at the furthest point,a center one piggy backed , etc however before starting please post back to advise if you have removed the rewind and or motor and if so, did you disturb the motor wiring inside the motor shroud.
Please post the original problem you opened the vac for as well and I will try to walk you through this