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