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