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