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