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