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