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