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