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