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