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