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