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