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