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