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