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