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