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