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