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