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