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