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)(19,28)(20,21)(23,29)(24,32)(25,26)(30,31)(2,5)(6,7)(9,11)(10,14)(12,15)(13,16)(17,18)(19,29)(20,26)(21,25)(22,27)(23,28)(24,31)(30,32) involution — undirected(9,12,13,10)(11,15,16,14)(17,19,21,31,22,30,20,28)(18,23,26,32,27,24,25,29)(11,16)(14,15)(17,19,21,31,22,30,20,28)(18,24,26,29,27,23,25,32)(1,3,4,8)(2,6,5,7)(19,30)(23,24)(28,31)(29,32)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.