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