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