One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(6,8)(9,10,13,12)(11,15,16,14)(17,18)(19,26)(20,24)(21,23)(22,25)(27,32)(28,31)(29,30)(1,2)(3,6)(4,5)(7,8)(9,11,13,16)(10,14,12,15)(19,20)(24,26)(27,28)(31,32)(2,5)(6,8)(17,19,23,20)(18,24,21,26)(22,28,30,27)(25,32,29,31)(2,5)(3,7)(17,20,23,19)(18,24,21,26)(22,27,30,28)(25,32,29,31)(1,2)(3,6)(4,5)(7,8)(17,21,23,18)(19,24,20,26)(22,29,30,25)(27,31,28,32)(1,3,4,7)(2,6,5,8)(9,12,13,10)(11,15,16,14)(17,22,23,30)(18,25,21,29)(19,27,20,28)(24,31,26,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.