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