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