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