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