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