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