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