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