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