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)(11,14)(12,16)(13,15)(18,22)(19,25)(20,27)(23,26)(24,30)(28,31)(1,3,5,4)(2,6,8,7)(9,11,14,10)(12,16,13,15)(18,22)(19,25)(20,27)(23,26)(24,30)(28,31)(10,11)(15,16)(17,18,20,22,21,24,27,30)(19,26,25,32,28,23,31,29)(9,12,14,13)(10,15,11,16)(17,19,27,31,21,28,20,25)(18,23,30,32,24,26,22,29)(1,4,5,3)(2,7,8,6)(9,13,14,12)(10,16,11,15)(18,24)(22,30)(23,26)(29,32)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.