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