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