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)(11,14)(12,13)(15,16)(17,18)(19,24)(20,22)(21,25)(23,26)(27,29)(28,31)(30,32)(1,3,5,4)(2,6,7,8)(9,10)(11,14)(12,13)(15,16)(17,19,23,20)(18,22,26,24)(21,25,30,32)(27,29,28,31)(1,4,5,3)(2,6,7,8)(10,13)(14,16)(17,20,23,19)(18,22,26,24)(21,27,30,28)(25,29,32,31)(10,13)(14,16)(17,21,23,30)(18,25,26,32)(19,27,20,28)(22,31,24,29)(2,7)(6,8)(9,11,12,15)(10,14,13,16)(17,22,23,24)(18,19,26,20)(21,29,30,31)(25,28,32,27)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.