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