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