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