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