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