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)(17,18,22,19)(20,23,27,25)(21,26,29,24)(28,31,32,30)(33,34)(35,41)(36,44)(37,38)(39,40)(42,46)(43,45)(47,48)(3,9)(7,13)(10,15)(14,16)(17,18,22,19)(20,25,27,23)(21,26,29,24)(28,30,32,31)(34,40)(38,48)(41,44)(43,46)(2,6)(7,13)(8,11)(14,16)(18,19)(20,27)(24,26)(28,32)(33,35,39,36)(34,41,40,44)(37,45,47,42)(38,43,48,46)(1,2)(3,7)(4,8)(5,6)(9,13)(10,14)(11,12)(15,16)(17,19,22,18)(20,25,27,23)(21,26,29,24)(28,31,32,30)(33,36,39,35)(34,41,40,44)(37,45,47,42)(38,46,48,43)(1,3)(2,7)(4,10)(5,9)(6,13)(8,14)(11,16)(12,15)(17,20)(18,23)(19,25)(21,28)(22,27)(24,30)(26,31)(29,32)(33,37)(34,38)(35,42)(36,45)(39,47)(40,48)(41,46)(43,44) involution — undirected(1,4,5,12)(2,8,6,11)(3,10,9,15)(7,14,13,16)(17,21)(18,24)(19,26)(20,28)(22,29)(23,30)(25,31)(27,32)(33,38)(34,37)(35,43)(36,46)(39,48)(40,47)(41,45)(42,44)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.