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