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