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