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