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