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