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