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