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