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