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