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