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