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