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