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