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