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