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