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