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