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