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