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