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