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