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