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