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