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