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