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)(17,18)(19,24)(20,30)(21,25)(22,26)(23,27)(28,31)(29,32)(5,7,8,6)(10,13)(14,16)(17,19)(18,24)(20,22)(21,28)(23,29)(25,31)(26,30)(27,32)(2,4)(9,11,12,15)(10,14,13,16)(17,20,22,19,23,28,21,29)(18,24,25,30,27,32,26,31)(10,13)(14,16)(17,21,23,22)(18,25,27,26)(19,28,29,20)(24,31,32,30)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.