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