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