One vertex per element, one color per generator, with an edge from x to x·s.
(2,3)(5,6)(7,10)(8,9)(11,12)(13,14)(15,27)(16,33)(17,36)(18,25)(19,24)(20,26)(21,30)(22,29)(23,28)(31,41)(32,40)(34,44)(35,43)(37,39)(38,42) involution — undirected(1,2,4,3)(6,9)(10,12)(13,15,18,30,20,32,19,31)(14,21,24,27,26,41,25,40)(16,17,29,37,35,38,34,28)(22,42,33,39,44,36,43,23)(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,16,18,29,20,35,19,34)(14,22,24,33,26,44,25,43)(15,28,30,17,32,37,31,38)(21,39,27,36,41,23,40,42)(13,17,19,28,20,38,18,37)(14,23,25,36,26,39,24,42)(15,29,31,16,32,34,30,35)(21,22,40,43,41,44,27,33)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.