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