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