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