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