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