One vertex per element, one color per generator, with an edge from x to x·s.
(9,10,15,13)(11,14,16,12)(17,18)(19,26)(20,21)(22,23)(24,29)(25,30)(27,28)(31,32)(1,2)(3,7)(4,5)(6,8)(9,11,15,16)(10,12,13,14)(18,23)(20,30)(24,26)(27,31)(2,5)(6,7)(9,10,15,13)(11,12,16,14)(18,23)(21,25)(24,26)(28,32)(1,3,4,8)(2,6,5,7)(9,12,15,14)(10,16,13,11)(17,19,22,29)(18,24,23,26)(20,31,30,27)(21,28,25,32)(1,3)(2,6)(4,8)(5,7)(9,13,15,10)(11,12,16,14)(17,20)(18,25)(19,27)(21,23)(22,30)(24,28)(26,32)(29,31)(1,2)(3,6)(4,5)(7,8)(9,14,15,12)(10,16,13,11)(17,21,22,25)(18,20,23,30)(19,28,29,32)(24,31,26,27)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.