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