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