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