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