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