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