Where could i find a 93 Cherokee Sport Wiring Harness diagram?

You can find some here:

http://www.autozone.com/servlet/UiBroker?ForwardPage=/az/cds/en_us/0900823d/80/15/3e/8f/0900823d80153e8f.jsp

The link that saudade gave you for autozone is pretty good but depending on what you need to know about the wiring harnesses on that year jeep it probably won't match up. I figured that out when I was replacing the radio in my 92 sport, the wires in it were nothing like what the diagram in the hayne's manual said they were(which is all the link's on autozone's website are is the hayne's manuals scanned on a computer). Let us know what you are needing to know about the wiring harness and I'm sure one of us on here will know better than the general picture that autozone gives you.

I have found some discrepancies between the AZ diagams and my XJ too. Also, the AZ "collection" isn't complete. But they came in handy for my power door locks.

As Dave says, if you can be specific, someone can direct you to something more detailed.

go here to download the 93 factory service manual.
http://www.lunghd.com/Downloads_and_Links/Downloads.htm