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