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