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