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