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