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)(17,18,21,25)(19,27,28,23)(20,24,33,39)(22,26,34,40)(29,38,32,35)(30,41,42,36)(31,37,45,48)(43,47,44,46)(2,5)(6,8)(9,11,12,16)(10,13,14,15)(19,28)(20,31)(22,34)(23,27)(24,37)(26,40)(29,43)(32,44)(33,45)(35,46)(38,47)(39,48)(1,3,4,7)(2,6,5,8)(10,14)(11,16)(17,19)(18,23)(20,32)(21,28)(22,30)(24,38)(25,27)(26,36)(29,33)(31,43)(34,42)(35,39)(37,46)(40,41)(44,45)(47,48)(10,14)(13,15)(17,20,22,31,21,33,34,45)(18,24,26,37,25,39,40,48)(19,29,30,44,28,32,42,43)(23,35,36,47,27,38,41,46)(2,5)(6,8)(10,14)(13,15)(19,28)(23,27)(29,32)(30,42)(35,38)(36,41)(43,44)(46,47) 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.