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