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