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