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