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)(11,12)(13,14)(15,16)(17,18,21,22)(19,24,23,20)(25,26,28,30)(27,29,31,32)(2,5)(6,7)(10,14)(11,15)(17,19)(18,20)(21,23)(22,24)(25,26)(27,29)(28,30)(31,32) involution — undirected(2,5)(6,7)(10,14)(11,15)(18,22)(19,23)(25,27,28,31)(26,29,30,32)(1,2)(3,6)(4,5)(7,8)(9,11,13,15)(10,12,14,16)(17,18)(19,24)(20,23)(21,22)(25,27)(26,29)(28,31)(30,32)(1,3)(2,6)(4,8)(5,7)(9,12)(10,15)(11,14)(13,16)(17,20,21,24)(18,23,22,19)(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.