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