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