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