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