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