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