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