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