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