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