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