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