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