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