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