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)(11,13)(12,14)(15,16)(17,18,23,21)(19,22,26,24)(20,28,31,27)(25,32,29,30)(2,5)(6,8)(9,11)(10,13)(12,15)(14,16)(17,19)(18,24)(20,27)(21,22)(23,26)(25,30)(28,31)(29,32) involution — undirected(11,15)(13,16)(17,20,22,32,23,31,24,30)(18,25,19,27,21,29,26,28)(11,15)(13,16)(17,21,23,18)(19,22,26,24)(20,29,31,25)(27,32,28,30)(1,3,4,7)(2,6,5,8)(10,14)(13,16)(17,22,23,24)(18,26,21,19)(20,30,31,32)(25,27,29,28)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.