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