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