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