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