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