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