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