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