One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(4,7)(8,10)(11,12)(13,21)(14,15)(16,18)(17,20)(19,26)(22,23)(24,25) involution — undirected(11,13,17,16)(12,18,20,21)(14,24,19,22)(15,23,26,25)(3,4)(5,8)(6,7)(9,10)(11,14,17,19)(12,15,20,26)(13,22,16,24)(18,25,21,23)(5,9)(8,10)(11,15)(12,19)(13,23)(14,20)(16,25)(17,26)(18,22)(21,24) involution — undirected(3,5,6,9)(4,8,7,10)(11,16,17,13)(12,18,20,21)(14,24,19,22)(15,25,26,23)(3,4)(5,8)(6,7)(9,10) 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.