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