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