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