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