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