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