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