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