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