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