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