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