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