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