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