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