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