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