One vertex per element, one color per generator, with an edge from x to x·s.
(4,11)(6,13)(7,12)(9,15)(17,18,22,26)(19,27,29,32)(20,25,21,24)(23,30,31,28)(33,34)(35,42)(36,40)(37,45)(38,41)(39,43)(44,47)(46,48)(1,2)(3,6)(4,12)(5,8)(7,11)(9,16)(10,13)(14,15)(17,19,22,29)(18,23,26,31)(20,28,21,30)(24,27,25,32)(1,3)(2,6)(4,9)(5,10)(7,14)(8,13)(11,15)(12,16)(20,21)(24,25)(27,32)(28,30)(33,35)(34,39)(36,43)(37,46)(38,44)(40,47)(41,48)(42,45) involution — undirected(1,4,5,11)(2,7,8,12)(3,9,10,15)(6,14,13,16)(17,20,22,21)(18,24,26,25)(19,28,29,30)(23,27,31,32)(33,36,38,37)(34,40,41,45)(35,43,44,46)(39,47,48,42)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.