It’s always possible somebody somewhere has posted a wiring diagram on a forum in response to a request, but generally I would think the odds of finding one are pretty low. The best thing to search in Google for (if you haven’t already tried) would be the words, wiring diagram, or wiring schematic, followed by the model number of your appliance ( Where to find the proper model number and serial number on a washing machine ). There are some repair manuals being sold but these are very general and not model specific and written by third parties. All the ones I’ve seen are very much out of date although they may well still contain some useful general advice and knowledge.
Basically, a single-phase motor requires a master timer, which decides the time for which the motor should keep rotating (washing time), and a spin direction controller, which stops the motor for 3 seconds after every 10 seconds and then resumes rotation in opposite direction.