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