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