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