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