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