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