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