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