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