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