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