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