One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(3,4)(5,9,10,7)(6,8)(11,12)(13,23,26,40)(14,19)(15,29)(16,21)(17,22)(18,25,34,41)(20,28)(24,39,27,37)(30,35,42,33)(31,38)(32,36)(3,5)(4,7)(6,10)(8,9)(11,13)(12,18)(14,24)(15,30)(16,27)(17,26)(19,33)(20,37)(21,35)(22,34)(23,36)(25,31)(28,41)(29,40)(32,42)(38,39) involution — undirected(11,14,17,16)(12,19,22,21)(13,24,26,27)(15,28,32,31)(18,33,34,35)(20,36,38,29)(23,39,40,37)(25,30,41,42)A 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.