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