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