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