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