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