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