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