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