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