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