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