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