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