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