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