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