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