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