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