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