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