Hi Jared,
there probably is a wiring diagram some where but there is so few wires it isn't needed. You have a heavy wire from the battery to the solonoid, from there solonoid to the starter. A small wire will then go from the center of the solonoid to the ignition switch. I'm not sure but you might not even have this wire if the solonoid is mounted on the dash and you just push on it. Not sure what you have. The only other wire that maybe kicking around is the alternator charge wire, but I'm guessing it probably isn't going to charge anyway