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