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