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