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)(11,14)(12,15)(13,16)(17,18,22,23)(19,24,28,32)(20,29,27,25)(21,26,31,30)(1,3,5,4)(2,6,8,7)(9,11,14,10)(12,15,13,16)(17,19)(18,24)(20,26)(21,25)(22,28)(23,32)(27,30)(29,31)(1,3,5,4)(2,7,8,6)(9,12,14,13)(10,15,11,16)(17,20,22,27)(18,25,23,29)(19,21,28,31)(24,30,32,26)(9,13,14,12)(10,15,11,16)(17,18,22,23)(19,24,28,32)(20,25,27,29)(21,30,31,26)(1,4,5,3)(2,7,8,6)(17,21)(18,26)(19,27)(20,28)(22,31)(23,30)(24,25)(29,32)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.