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