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