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