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