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