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