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