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