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