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