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