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