Can You get Rabies from a stray cat bite that grazed the skin?

It is extremely unlikely, the virus is present in the saliva so if the cat was licking it's wound (very common) there could be some virus in the wet saliva but you would have to get that into your body and your skin (unless you too have a cut where you touched the saliva) is a good barrier...

Be very careful: untreated rabies is fatal in 99% of cases...