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