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