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