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