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