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