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