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