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