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