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