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