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