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