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)(11,13)(12,14)(15,16)(17,18,22,20)(19,27,28,24)(21,25,31,29)(23,26,32,30)(1,3,5,4)(2,6,8,7)(9,11)(10,13)(12,15)(14,16)(17,19,22,28)(18,24,20,27)(21,26,31,30)(23,29,32,25)(1,3,5,4)(2,7,8,6)(10,14)(11,15)(17,20,22,18)(19,27,28,24)(21,25,31,29)(23,30,32,26)(10,14)(13,16)(17,21,23,27,22,31,32,24)(18,25,26,28,20,29,30,19)(1,4,5,3)(2,7,8,6)(18,20)(21,31)(24,27)(26,30)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.