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