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