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