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