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