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