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