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