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