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