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