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