One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,4)(5,6)(7,8)(10,13)(11,12)(17,18,22,20)(19,25,27,23)(21,24,29,28)(26,31,32,30)(2,6)(3,8)(9,10,14,13)(11,16,12,15)(18,20)(23,25)(24,28)(30,31)(2,6)(4,7)(9,11,14,12)(10,15,13,16)(21,29)(24,28)(26,32)(30,31)(1,3)(2,7)(4,6)(5,8)(9,12,14,11)(10,16,13,15)(17,19)(18,23)(20,25)(21,26)(22,27)(24,30)(28,31)(29,32)(1,3)(2,7)(4,6)(5,8)(9,13,14,10)(11,16,12,15)(17,20,22,18)(19,25,27,23)(21,28,29,24)(26,31,32,30)(1,4,5,7)(2,3,6,8)(17,21,22,29)(18,24,20,28)(19,26,27,32)(23,30,25,31)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.