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