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