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