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