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