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