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