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