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