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