One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,6,12,7,10,5,11)(3,13,15,28,17,8,16,24)(4,18,22,9,20,26,21,27)(14,30,32,23,31,25,19,29)(33,34)(35,44)(36,41)(37,53)(38,42)(39,43)(40,46)(45,56)(47,59)(48,55)(49,64)(50,60)(51,57)(52,58)(54,62)(61,63)(1,3)(2,8)(4,19)(5,15)(6,16)(7,17)(9,25)(10,13)(11,24)(12,28)(14,21)(18,29)(20,32)(22,31)(23,26)(27,30)(33,35,39,47)(34,40,43,55)(36,49,52,62)(37,48,38,46)(41,56,58,61)(42,59,53,44)(45,50,63,51)(54,60,64,57)(1,4,7,20)(2,9,10,27)(3,14,17,31)(5,22,6,21)(8,23,13,29)(11,26,12,18)(15,19,16,32)(24,30,28,25)(33,36,39,52)(34,41,43,58)(35,45,47,63)(37,51,38,50)(40,54,55,64)(42,60,53,57)(44,61,59,56)(46,49,48,62)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.