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