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