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