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