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