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)(19,27)(20,31)(21,32)(22,26)(23,24)(25,28)(29,30)(33,34)(35,41)(36,40)(37,38)(39,43)(42,47)(44,45)(46,48)(2,3)(4,11)(8,10)(12,16)(18,24)(19,28)(20,32)(26,30)(34,38)(39,41)(40,45)(46,47) involution — undirected(5,13)(8,10)(12,16)(14,15)(17,19,23,28)(18,25,24,27)(20,29,32,22)(21,30,31,26)(33,34)(35,39)(36,40)(37,38)(41,43)(42,46)(44,45)(47,48)(1,3,6,2)(4,7,11,9)(5,10,13,8)(12,14,16,15)(17,20)(18,21)(19,29)(22,28)(23,32)(24,31)(25,30)(26,27)(33,35)(34,39)(36,42)(37,43)(38,41)(40,46)(44,48)(45,47)(1,4,6,11)(2,7,3,9)(5,12,13,16)(8,14,10,15)(17,21)(18,20)(19,30)(22,27)(23,31)(24,32)(25,29)(26,28)(1,5,6,13)(2,8,3,10)(4,12,11,16)(7,14,9,15)(17,22,23,29)(18,26,24,30)(19,20,28,32)(21,27,31,25)(33,36,37,44)(34,40,38,45)(35,42,43,48)(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.