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