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