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