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