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