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