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