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