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