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