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