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