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