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