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