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