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