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