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