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