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