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