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