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