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