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