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