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