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