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