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