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