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