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