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