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