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