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