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