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