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