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