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