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