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