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