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