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