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