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