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