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