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