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