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