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