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