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