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