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