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