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