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