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