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