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