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