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