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