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