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