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