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