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)(17,37)(18,25)(19,24)(20,26)(21,30)(22,29)(23,28)(31,40)(32,39)(34,41)(35,43)(36,42)(38,44) involution — undirected(1,2,4,3)(6,9)(10,12)(13,15,18,30,20,32,19,31)(14,21,24,27,26,40,25,39)(16,34,35,28,36,17,29,38)(22,41,42,44,43,37,33,23)(1,3,4,2)(5,7,8,11)(6,10,9,12)(13,16,18,35,20,36,19,29)(14,22,24,42,26,43,25,33)(15,28,30,17,32,38,31,34)(21,23,27,41,40,44,39,37)(13,17,18,38,20,34,19,28)(14,23,24,41,26,44,25,37)(15,29,30,16,32,35,31,36)(21,22,27,42,40,43,39,33)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.