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