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