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