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