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