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