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