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