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)(12,16)(13,14)(17,18)(19,27)(20,24)(21,22)(23,25)(26,32)(28,31)(29,30)(3,7)(5,8)(9,10,13,14)(11,15,16,12)(17,19,23,20)(18,24,25,27)(21,28,26,30)(22,29,32,31)(1,2)(3,5)(4,6)(7,8)(9,11)(10,12)(13,16)(14,15)(18,25)(22,32)(24,27)(29,31) involution — undirected(9,12)(10,11)(13,15)(14,16)(17,20,23,19)(18,24,25,27)(21,28,26,30)(22,31,32,29)(1,3)(2,5)(4,7)(6,8)(9,10)(11,12)(13,14)(15,16)(17,21,23,26)(18,22,25,32)(19,28,20,30)(24,29,27,31)(1,2)(3,5)(4,6)(7,8)(9,12)(10,11)(13,15)(14,16)(17,22)(18,26)(19,29)(20,31)(21,25)(23,32)(24,30)(27,28) 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.