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