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