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