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