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