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