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