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