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