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