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