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