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