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