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