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