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