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