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