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