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