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