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