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