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