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