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