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